# SDR FDEA201012164700

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 2010
- Submitted: December 17, 2010
- Operation: Air carrier
- Aircraft: [N652FE](https://openairdocs.org/aircraft/N652FE), registered now
- Make and model: Airbus A300 F4-605R
- Registry model: [Airbus A300 F4-605R](https://openairdocs.org/model/airbus-industrie-a300-f4-605r) (OpenAirDocs)
- Aircraft serial: 735
- Aircraft time: 24,715 hours, 12,979 cycles
- Engine: Ge CF680
- System (JASC): [2421 · AC Generator-Alternator](https://openairdocs.org/jasc/2421)
- Part: Gcu
- Part number: 764067A
- Part serial: A165
- Condition: Malfunctioned
- Location: Zone 100
- Part time: 16,456 hours, 9,093 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: H, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201012164700

## Discrepancy

ACFT RETURNED TO DEPARTURE WITH NR1 ENGINE GEN FAULTED AND NR 1 AC BUSS FAILURE.   INSPECTED AND PERFORMED GPCU BITE.  TROUBLE SHOOTING INDICATED NO RESPONSE FROM NR 1 GCU.   PULLED NR 1 GCU FROM RACK SMELLED STRONG BURN ODOR. SWAPPED APU GCU INTO NR 1 POSITION.  NR1 AC BUSS NOW FUNCTIONING RESET NR 1 ENG IDG REF AMM 24-20-00-09-0 AND OPERATED NR 1 ENG AND NR 1 AC BUSS GROUND CHECKED GOOD. REF AMM 24-22-12-04-0  CANNED APU GCU PN 740120C/ SN 3132 FROM A/C 815 AND INSTALLED IN APU POSITION. APU ELECTRICAL GRD CHECKS GOOD REF AMM 24-23-12-04-0 NR 1 ENG GEN AND AC BUSS GROUND CHECK GOOD, OK TO CONTINUE.

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